12021233 has 8 divisors (see below), whose sum is σ = 13872768. Its totient is φ = 10203264.

The previous prime is 12021187. The next prime is 12021259. The reversal of 12021233 is 33212021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12021233 - 2¹⁰ = 12020209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12041233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7616 + ... + 9057.

It is an arithmetic number, because the mean of its divisors is an integer number (1734096).

Almost surely, 2^12021233 is an apocalyptic number.

It is an amenable number.

12021233 is a deficient number, since it is larger than the sum of its proper divisors (1851535).

12021233 is a wasteful number, since it uses less digits than its factorization.

12021233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16783.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 12021233 is about 3467.1649802108. The cubic root of 12021233 is about 229.0778007103.

Adding to 12021233 its reverse (33212021), we get a palindrome (45233254).

The spelling of 12021233 in words is "twelve million, twenty-one thousand, two hundred thirty-three".